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    <p>It seems someone already thought about it on snip2code!<br> Here a tcsh bash script that does exactly what you want.</p> <p><a href="http://www.snip2code.com/Snippet/11216/Custom-diff-tool-for-clearcase-object?fromPage=1" rel="noreferrer">Custom-diff-tool-for-clearcase-object</a></p> <p>As you can see the following is the key code to get the previous version of a given file:</p> <p><code>cleartool descr -pred -short $1</code></p> <p>Where <code>$1</code> is the file name to compare.</p> <hr> <pre><code>#!/bin/tcsh -e set _CLEARCASE_VIEW = `cleartool pwv -short -setview` echo Set view: "$_CLEARCASE_VIEW" set my_firstversion = "" set my_secondversion = "" set my_difftool = kdiff3 # check clearcase view if ( "$_CLEARCASE_VIEW" == "** NONE **" ) then echo "Error: ClearCase view not set, aborted." exit -1 endif if ( "$1" == "" ) then echo "Error: missing 1st file argument!" echo "Eg: `basename $0` file1.txt -&gt; This will diff file1.txt with its previous version" echo "Eg: `basename $0` file1.txt file2.txt -&gt; This will diff file1.txt and file2.txt" exit -1 endif set my_firstversion = "$1" echo "my_firstversion=$my_firstversion" if ( "$2" == "" ) then echo "No 2nd file passed, calculating previous version of $my_firstversion" set my_secondversion = $my_firstversion@@`cleartool descr -pred -short $my_firstversion` else echo "Setting 2nd file to $2" set my_secondversion = "$2" endif echo "my_secondversion=$my_secondversion" ${my_difftool} ${my_firstversion} ${my_secondversion} &amp; </code></pre>
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    1. POAny way to use a custom diff tool with cleartool/clearcase?
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    1. USDominique Terrs
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    1. COSeems really useful done in this way, most of all for the capability to consider all version trees and the runtime calculation of the previous version!
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      1. USCristiano Ghersi
 

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